/* Portafolio David Gómez Marín · paleta negra y blanca; oro solo en detalles mínimos.
   Formas: botones en píldora, medios con radio 14px. Oro: punto del logo, viñetas y filetes de las piezas 3D. */
@font-face{font-family:"Playfair Display";src:url(../fonts/playfair-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Playfair Display";src:url(../fonts/playfair-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Playfair Display";src:url(../fonts/playfair-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Playfair Display";src:url(../fonts/playfair-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Satoshi;src:url(../fonts/satoshi-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:Satoshi;src:url(../fonts/satoshi-700.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:Satoshi;src:url(../fonts/satoshi-900.woff2) format("woff2");font-weight:900;font-display:swap}

:root{
  --negro:#0b0b0c;--negro2:#121214;--linea:rgba(242,237,228,.1);
  --marfil:#f2ede4;--suave:rgba(242,237,228,.68);
  --oro:#c9a45c;--oro2:#e2c27f;
  --pad:clamp(18px,5vw,72px);--nav:68px;
  --titulo:"Playfair Display",Georgia,serif;--sans:Satoshi,system-ui,sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --radio:14px
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{margin:0;background:var(--negro);color:var(--marfil);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--titulo);font-weight:600;margin:0;letter-spacing:-.015em;line-height:1.1}
h1 em,h2 em{font-style:italic;font-weight:400;color:var(--marfil);padding-bottom:.08em}
p{margin:0}
:focus-visible{outline:2px solid var(--marfil);outline-offset:3px;border-radius:6px}
.saltar{position:absolute;left:-999px;top:8px;z-index:200;background:var(--marfil);color:#000;padding:10px 14px;border-radius:8px}
.saltar:focus{left:8px}
.eyebrow{font:700 12px/1 var(--sans);letter-spacing:.2em;text-transform:uppercase;color:rgba(242,237,228,.55);margin-bottom:22px}

/* Grano fino fijo (no repinta al hacer scroll) */
body::after{content:"";position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.05;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* Botones */
.boton{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 26px;border-radius:999px;font:700 15px/1 var(--sans);white-space:nowrap;transition:background-color .3s,border-color .3s,color .3s,box-shadow .3s;will-change:transform}
.boton i{font-size:18px}
.boton-claro{background:var(--marfil);color:#0b0b0c;box-shadow:0 10px 30px -14px rgba(242,237,228,.35)}
.boton-claro:hover{background:#fff;box-shadow:0 14px 40px -12px rgba(242,237,228,.5)}
.boton-borde{border:1px solid rgba(242,237,228,.28);color:var(--marfil)}
.boton-borde:hover{border-color:var(--marfil);background:rgba(242,237,228,.06)}
.boton-chico{height:42px;padding:0 20px;font-size:14px}
.boton:active{scale:.98}

/* Navegación */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav);display:flex;align-items:center;justify-content:space-between;gap:24px;padding:0 var(--pad);transition:background-color .4s,backdrop-filter .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.solida{background:rgba(11,11,12,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--linea)}
.marca{font:700 20px/1 var(--titulo)}
.marca span{color:var(--oro2)}
.nav nav{display:flex;gap:30px;font-size:15px;color:var(--suave)}
.nav nav a{transition:color .25s}
.nav nav a:hover{color:var(--marfil)}

/* Hero */
.hero{position:relative;min-height:100dvh;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:center;gap:clamp(20px,3vw,48px);padding:calc(var(--nav) + 24px) var(--pad) 40px;background:radial-gradient(60% 70% at 78% 45%,rgba(242,237,228,.07),transparent 65%)}
.hero h1{font-size:clamp(40px,5.2vw,78px);line-height:1.05;max-width:12.5ch}
.hero-sub{margin-top:24px;font-size:clamp(17px,1.35vw,20px);color:var(--suave);max-width:44ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-3d{position:relative;height:min(78dvh,720px);min-height:420px}
#tablero-3d{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:pan-y;-webkit-mask:radial-gradient(ellipse 50% 58% at 50% 48%,#000 62%,transparent 100%);mask:radial-gradient(ellipse 50% 58% at 50% 48%,#000 62%,transparent 100%)}
#tablero-3d.arrastrando{cursor:grabbing}
.hero-respaldo{pointer-events:none;position:absolute;left:50%;bottom:8%;height:70%;width:auto;transform:translateX(-50%);opacity:0;transition:opacity .6s}
.sin-3d .hero-respaldo{opacity:1}
.sin-3d #tablero-3d,.sin-3d .hero-ayuda{display:none}
.hero-ayuda{position:absolute;left:0;right:0;bottom:0;text-align:center;font-size:13px;color:rgba(242,237,228,.45)}
.pieza-etiqueta{position:absolute;left:0;top:0;pointer-events:none;padding:10px 14px;border-radius:10px;background:rgba(11,11,12,.86);border:1px solid rgba(242,237,228,.25);backdrop-filter:blur(8px);font-size:14px;line-height:1.3;white-space:nowrap;opacity:0;transform:translate(-50%,-130%) scale(.96);transition:opacity .2s,transform .2s var(--ease)}
.pieza-etiqueta b{display:block;font:600 16px/1.2 var(--titulo);color:var(--marfil)}
.pieza-etiqueta.on{opacity:1;transform:translate(-50%,-140%) scale(1)}

/* Datos */
.datos{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--linea);border-bottom:1px solid var(--linea)}
.dato{padding:30px var(--pad) 30px clamp(18px,2.4vw,36px);border-left:1px solid var(--linea)}
.dato:first-child{border-left:0;padding-left:var(--pad)}
.dato b{display:block;font:600 clamp(26px,2.6vw,38px)/1 var(--titulo);color:var(--marfil);margin-bottom:10px}
.dato span{font-size:15px;color:var(--suave)}

/* Casos */
.casos{padding:clamp(90px,10vw,150px) var(--pad);max-width:1440px;margin:0 auto}
.casos h2{font-size:clamp(36px,4.6vw,68px);line-height:1.08}
.intro{margin-top:18px;color:var(--suave);max-width:52ch;font-size:18px}
.caso h3{font-size:clamp(22px,1.9vw,28px);margin:6px 0 10px}
.caso p{color:var(--suave)}
.caso-lugar{font-size:13px;letter-spacing:.06em;color:rgba(242,237,228,.5)!important}
.caso-media{position:relative;display:block;border-radius:var(--radio);overflow:hidden;background:#151517;box-shadow:0 30px 60px -30px rgba(0,0,0,.9),0 0 0 1px var(--linea);transform:perspective(1000px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) translateZ(0);transition:transform .5s var(--ease),box-shadow .4s}
.caso-media img{width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;object-position:top;transition:transform .8s var(--ease)}
.caso-media:hover img{transform:scale(1.035)}
.caso-media.activo{transition:transform .08s linear,box-shadow .4s;box-shadow:0 40px 70px -30px rgba(0,0,0,.95),0 0 0 1px rgba(242,237,228,.28)}
.brillo{position:absolute;inset:0;pointer-events:none;background:radial-gradient(420px circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.16),transparent 45%);opacity:0;transition:opacity .3s}
.caso-media.activo .brillo{opacity:1}
.enlace{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-weight:700;font-size:15px;color:var(--marfil);border-bottom:1px solid rgba(242,237,228,.25);transition:border-color .25s,gap .25s}
.enlace:hover{border-color:var(--marfil);gap:10px}

.caso-grande{display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(28px,4vw,64px);align-items:center;margin-top:clamp(48px,6vw,80px)}
.caso-grande h3{font-size:clamp(30px,3vw,44px)}
.hice{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}
.hice li{position:relative;padding-left:24px;color:var(--marfil)}
.hice li::before{content:"";position:absolute;left:0;top:.62em;width:12px;height:1px;background:var(--oro)}

.casos-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(36px,4vw,56px) clamp(22px,2.6vw,40px);margin-top:clamp(70px,8vw,120px)}
.casos-grid .caso{grid-column:span 2}
.casos-grid .caso:nth-child(1),.casos-grid .caso:nth-child(2){grid-column:span 3}
.casos-grid .caso-media{margin-bottom:20px}
.caso-producto .caso-media{box-shadow:0 30px 60px -30px rgba(0,0,0,.9),0 0 0 1px rgba(242,237,228,.22)}

.caso-banda{margin-top:clamp(70px,8vw,110px)}
.caso-banda .caso-media img{aspect-ratio:1200/225}
.caso-banda-txt{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(20px,4vw,64px);align-items:end;margin-top:24px}

/* Servicios */
.servicios{padding:clamp(90px,10vw,140px) var(--pad);background:var(--negro2);border-top:1px solid var(--linea);border-bottom:1px solid var(--linea)}
.servicios h2{font-size:clamp(34px,4vw,58px);max-width:1440px;margin:0 auto}
.srv-grupos{max-width:1440px;margin:clamp(40px,5vw,64px) auto 0;display:grid;grid-template-columns:1fr 1.6fr;gap:clamp(18px,2vw,28px)}
.srv-grupo{position:relative;border-radius:var(--radio);padding:clamp(26px,3vw,44px);background:rgba(255,255,255,.025);border:1px solid var(--linea);overflow:hidden}
.srv-grupo::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(500px circle at var(--fx,50%) var(--fy,0%),rgba(242,237,228,.07),transparent 50%);opacity:0;transition:opacity .4s}
.srv-grupo:hover::before{opacity:1}
.srv-grupo h3{font-size:clamp(24px,2.2vw,32px);margin-bottom:26px}
.srv-grupo dl{margin:0;display:grid;gap:24px}
.srv-grupo:nth-child(2) dl{grid-template-columns:1fr 1fr}
.srv-grupo dt{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;margin-bottom:6px}
.srv-grupo dt i{font-size:22px;color:rgba(242,237,228,.7)}
.srv-grupo dd{margin:0;color:var(--suave);font-size:16px}

/* Proceso */
.proceso{padding:clamp(90px,10vw,150px) var(--pad);max-width:1440px;margin:0 auto}
.proceso h2{font-size:clamp(34px,4vw,58px);max-width:20ch}
.linea{list-style:none;padding:0;margin:clamp(48px,6vw,80px) 0 0;display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative}
.linea::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:linear-gradient(90deg,rgba(242,237,228,.5),rgba(242,237,228,.06))}
.linea li{position:relative;padding-top:38px}
.linea li::before{content:"";position:absolute;left:0;top:3px;width:13px;height:13px;border-radius:50%;background:var(--negro);border:2px solid var(--marfil)}
.linea b{display:block;font:600 21px/1.2 var(--titulo);margin-bottom:8px}
.linea span{color:var(--suave);font-size:15px}

/* Sobre mí */
.sobre{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(36px,6vw,100px);padding:clamp(90px,10vw,150px) var(--pad);max-width:1440px;margin:0 auto;border-top:1px solid var(--linea)}
.sobre h2{font-size:clamp(32px,3.6vw,52px);line-height:1.1;margin-bottom:28px}
.sobre-txt p:not(.eyebrow){color:var(--suave);margin-bottom:16px;max-width:58ch}
.ficha{margin:0;display:grid;gap:0;align-self:end}
.ficha div{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:20px 0;border-top:1px solid var(--linea)}
.ficha dt{font-weight:700;color:rgba(242,237,228,.5);font-size:14px;letter-spacing:.04em}
.ficha dd{margin:0;color:var(--marfil);font-size:16px}

/* Contacto */
.contacto{text-align:center;padding:clamp(100px,12vw,180px) var(--pad);background:radial-gradient(60% 70% at 50% 100%,rgba(242,237,228,.06),transparent 70%)}
.contacto h2{font-size:clamp(36px,5vw,76px);line-height:1.08;max-width:16ch;margin:0 auto}
.contacto p{color:var(--suave);max-width:52ch;margin:24px auto 0;font-size:18px}
.contacto-cta{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:40px}

.pie{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:28px var(--pad);border-top:1px solid var(--linea);color:var(--suave);font-size:14px}
.pie a{display:inline-flex;align-items:center;gap:6px}
.pie a:hover{color:var(--marfil)}

/* Aparición al hacer scroll */
@media (prefers-reduced-motion:no-preference){
  .revela{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform 1s var(--ease);transition-delay:var(--d,0s)}
  .revela.visto{opacity:1;transform:none}
  .hero-txt>*{opacity:0;transform:translateY(20px);animation:entra 1s var(--ease) forwards}
  .hero-txt>*:nth-child(2){animation-delay:.08s}.hero-txt>*:nth-child(3){animation-delay:.16s}.hero-txt>*:nth-child(4){animation-delay:.24s}
  .hero-3d{animation:aparece 1.6s var(--ease) .2s both}
}
@keyframes entra{to{opacity:1;transform:none}}
@keyframes aparece{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}

/* Tableta */
@media (max-width:1024px){
  .nav nav{display:none}
  .hero{grid-template-columns:1fr;min-height:auto;padding-top:calc(var(--nav) + 40px)}
  .hero-3d{height:min(62vh,560px)}
  .datos{grid-template-columns:1fr 1fr}
  .dato:nth-child(3){border-left:0;padding-left:var(--pad)}
  .dato:nth-child(n+3){border-top:1px solid var(--linea)}
  .caso-grande{grid-template-columns:1fr}
  .casos-grid{grid-template-columns:1fr 1fr}
  .casos-grid .caso,.casos-grid .caso:nth-child(1),.casos-grid .caso:nth-child(2){grid-column:span 1}
  .srv-grupos{grid-template-columns:1fr}
  .linea{grid-template-columns:1fr;gap:0}
  .linea::before{left:6px;right:auto;top:0;bottom:0;width:1px;height:auto;background:linear-gradient(180deg,rgba(242,237,228,.5),rgba(242,237,228,.06))}
  .linea li{padding:0 0 30px 40px}
  .linea li::before{top:4px}
  .sobre{grid-template-columns:1fr}
}
/* Móvil */
@media (max-width:640px){
  body{font-size:16px}
  .hero-3d{height:440px;min-height:0}
  .hero-cta .boton{flex:1;justify-content:center}
  .datos{grid-template-columns:1fr}
  .dato,.dato:first-child,.dato:nth-child(3){border-left:0;padding:22px var(--pad);border-top:1px solid var(--linea)}
  .dato:first-child{border-top:0}
  .casos-grid{grid-template-columns:1fr}
  .caso-banda-txt{grid-template-columns:1fr}
  .srv-grupo:nth-child(2) dl{grid-template-columns:1fr}
  .ficha div{grid-template-columns:1fr;gap:6px}
  .contacto-cta .boton{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}